Formulas

In the provided formulas, $A$ is the balance in the account after $t$ years, $P$ is the

principal investment, $r$ is the annual interest rate in decimal form, $n$ is the number

of compounding periods per year, and $Y$ is the investment's effective annual yield

in decimal form.

$A=P(1+\frac{r}{n}{)}^{nt},P=\frac{A}{(1+\frac{r}{n}{)}^{nt}},A=P{e}^{rt},Y=(1+\frac{r}{n}{)}^n-1$